ASTM F543 Annex 4

ASTM F543 Annex 4

Self-Tapping Performance of Bone Screws

 

Describes the method to determine the compressive force required to engage a self-tapping medical bone screw into a bone-analogue material. The self-tapping bone screw is turned in the fastening direction while the axial compressive force is increased at a defined rate until screw engagement within the bone-analogue occurs.